Yes, the article is thin on facts. No mention of the frequency that they use, and how they measure the glucose level, which I'm guessing is some sort of spectral response.
I'll take a closer look at the paper in Nature.
I'll take a closer look at the paper in Nature.
The paper is way overhyped. They've just built a meta material near field antenna. Nothing new I can see.
There are other papers available via Googling that glucose can be measured at around 4.2GHz. Seems hard to do it reliably, though.